3700LP Bench Scale Series User’s Manual
EUROPEAN COUNTRIES WARNING This is a Class A product. In a domestic environment this product may cause radio interference in which the user may be required to take adequate measures. CAUTION Risk of electrical shock. Do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel. Weigh-Tronix reserves the right to change specifications at any time. 10/16/06 3700LP_U.
Table of Contents Table of Contents .............................................................................. 3 Specifications..................................................................................... 4 Introduction ........................................................................................ 5 Unpacking and Setup ........................................................................ 5 Front Panel .................................................................................
Specifications Capacity and Dimensions Construction Model Capacity LB (kg) Dimensions Resolution LB (g) 3730LP 10 (5) 10.4” x 10.4” x 2.5” .002 (1) 3730LP 25 (10) 10.4” x 10.4” x 2.5” .005 (2) 3730LP 50 (25) 10.4” x 10.4” x 2.5” .01 (5) 3732LP 100 (50) 14” x 14” x 2.9” .02 (10) 3732LP 250 (100) 14” x 14” x 2.9” .05 (20) 3734LP 100 (50) 18” x 18” x 3.1” .02 (10) 3734LP 250 (100) 18” x 18” x 3.1” .
Introduction The 3700LP Series is made up of several sizes and capacities of low profile bench scales. These scales have heavy duty bases, stainless steel, wraparound shrouds and easy to see and operate display panels that can be mounted on the unit or remotely, by cable. See Specifications for all the options and models which are available.
Front Panel The front panel consists of the display window, annunciator labels, and three operation keys; PRINT, UNITS, and ZERO. See Figure 1. Figure 1 Front panel The display has five LCD weight digits and annunciators. The display is backlit for greater visibility. The center-of-zero annunciator lights up when the scale is within ¼ graduation of zero. The center-of-zero, lb and kg annunciator labels are indicated as active when the annunciators appear to their left in the display window.
Printing Output If your system is configured for printing of weights and you have a printer properly connected to the scale, the printer will print the weight information either • after the weight is stable or • after the item is removed from the scale, depending on the configuration settings. See the Service Manual for information on configuring the scale. For detailed printing protocol information, see the section titled RS-232 Protocols. Serial Connector Pin-out DE-9 Female Scale Pin Name Direction 1.
Figure 4 Large barcode label sample printout (4" x 2.25") Figure 4 shows a sample printout with barcode on 4" x 2.25" label stock. This sample shows time and date. If your printer is not equipped with time and date, they will not be present. Operation of the Optional Footswitch If you have the optional footswitch attached to the scale you can use it to zero the scale or print a weighment, depending on how the scale is configured.
Battery Information The battery powered units must be charged prior to use. Plug in the AC cord to charge an installed battery. A drained battery will charge in about six hours. With approximately one hour of use left in the battery, the display will flash LOBAT every 15 seconds. Maintenance There is little to do to maintain this scale. • Keep the platter clean • Regularly check calibration with a test weight • Do not use water on the base.
Notes: Numbers 1 - 4 below are referenced in the protocol tables under NOTES: 1. The decimal point position may be different depending on selected capacity and division. 2. A space character is added to bring character count to the same as capacities with a decimal point. 3. A status byte is sent if the scale is in motion, under zero, over capacity or the scale is at center-of-zero.
NCI Protocol Displayed as "NCI" Command Possible Scale Response Units W XXX.XXlb[HL] XXX.XXkg[HL] XXX.XXoz[HL] _XXXXg_[HL] Pounds Kilograms Ounces Grams Z [HL] Zeros scale S [HL] Scale Status All other ? Model 8213 Protocol Notes 1 1 1 2 Bad command Displayed as "8213" Command Possible Scale Response Units W XXX.XX XXX.XX XXX.
Model 3835 Protocol Displayed as "3835" Command Possible Scale Response Units W p0XX.XXLB[HL] p0XX.XXKG[HL] p0XX.
Diagnostics Menu There is a diagnostics menu that user’s may access to help diagnose scale problems. Follow these steps to access and move through the diagnostics menu shown in Figure 4. 1 Press and hold the PRINT key until DIAG is displayed. 2. Press the UNITS key. . . DISP is displayed. This is the display test. 3. Press the UNITS key to perform the display test. . . Display shows DISP when the test is done. You can skip from one menu item to the next.
DISP Shows version and revision of program, followed by a segment test and countdown. RA Performs a nondestructive test of all locations of RAM in the processor and displays PASS or FAIL. RO Performs a checksum of all ROM locations in the processor. This value is compared with a value stored in ROM and displays PASS or FAIL. I/O Install a loopback connector with transmit and receive jumped together on the RS-232 output connector. The display will show PASS or FAIL.
Installing the Display Mounting Bracket Parts The display mounting kit includes the hardware necessary to attach the remote display to the scale base. For the 100 to 250 lb capacity 14 x 14 inch bases, use the bracket shown in Figure 5 (PN1067-17224). Scales are shown disassembled for clarity only. They do not have to be disassembled to install the brackets. Figure 5 Mounting bracket (100-250 lb, 14 x 14 inch base) For the 10-50 lb, 10 x 10 inch bases, use the bracket shown in Figure 6.
Installation For both styles of brackets, follow these steps to install the mounting bracket and attach the display: 1. Disconnect the power and display cables and turn the scale upside down. 2. Place a cable twisty (supplied on original display assembly) thru the two holes on the vertical side of the display bracket so that the ends point toward the back of the sloped display mounting surface. Twist once to hold in place until ready to secure the excess display cable.
3700LP Bench Scale Series User’s Manual 17
3700LP Bench Scale Series User’s Manual
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Avery Weigh-Tronix USA 1000 Armstrong Dr. Fairmont, MN 56031 USA Telephone: 507-238-4461 Facsimile: 507-238-4195 e-mail: industrial@weigh-tronix.com www.wtxweb.com Avery Weigh-Tronix UK Foundry Lane Smethwick, West Midlands England B66 2LP Tel: +44 870 90 34343 Fax: +44 121 224 8183 Email: info@awtxglobal.com Web site:www.averyweigh-tronix.com Weigh Bar® is a registered trademark of Avery Weigh-Tronix and may be registered in certain jurisdictions.
